Chain.



PATE'N'IED APB. 5,1904. 1.-.VDUPUIS;l

GRAIN. rrmonmr -rinnp In z5. 1an;

l0 IODEL,

fw, f@ Jj Patented April 5, 1904.

UNITED STATES PATENT GFFICE.

JEAN DUPUIS, OF MONTPELLIER, FRANCE,

CHAIN..

SPECIFICATION forming part of Letters 'Patent No..756,4;81, dated April 5, 1904. Appncaamiednyzs,190s; stanno. 158,719. (Nomads.)

To LM iff/1.0m,l 15mn/y concern:

Be it known that I, JEAN DUPUIS, acitizen of the French Republic, residing at Montpellier, France, have invented certain new and useful fV Improvements in Chains, of which the following is a specification.

This invention' has for its object a novel construction of chain composed of links made by preference ofcast-steel, these links having 1o a. special form and being able to be connected together in such a manner as to prevent them a becoming detached under any circumstances when the chain is in use.

In the accompanying drawings', which represent different forms of manufacture of the said chain, Figure l shows a series of` links with connection. Fig. 2 shows the arrangement of two links for joining. Fig. 3 shows the arrangement of connecting-links. Figs. 29 4, 5, 6, and 7 show different fermsnf vlinks utilized in certain particular cases,

Each link a takes in principle the form represented in Figs. l, 2, and 3 and has a double loop b at the oppositeend 0f ,the wid- 25' ened part c of thelink, which'is for the purpose of connection to the following' iink. In,

Vorder to join the links together, the;v are arranged as shown in Fig. 2 by passing one of the loops of the second link through the two loops of the first link and pushing' them to tile bottom, then by turning the second link squatter ofa turn inV the direction of the arrow F, and then a quarter of a turn in the direction of the arrow F'. The first two elements of the chain will then be in their normal connected position, and the successive links are connected in the same manner.-

Cox'mection can .be made by means of special link'sl'fl, equally detachable, passing on a small 4 axlpin e.

`In' the arrangement represented in Fig. 4 each of the links a carries a projecting' footf, serving, forl instance, for the fixing of transport-buckets y. In this case the transport A5 would be accomplished with two parallel chains composed of suitable li'nk elements acting upon two pairs of pulleys with parallel axles in any usualmanner.

In Figs. 5, 6, and 7' are shown links with fiat double feet or plates t forattachment to buckets. One of these links has a double arresting-ring z' encircling the parallel portions of the link and the depending arms of the bent-over portion, said ring having alateral portion adapted to be secured by screw or otherwise to a lateral projection y' on the link. (See Fig. 7.)

The chain herein described can be used for numerous purposes, such as simple transmissions of movement, as well as for transporters, elevators, and the like by adopting the accessory arrangements above indicated.

Having now particularly described and ascertained the nature of thc said invention and in what manner the same is to be performed, I declare that what I claim isl. A chain composed of links detachably connected together, each link having widened portion, and double parallel closed portions at theend farthest from said widened portion, with the loops of one link engaged with the' widened portion of the next adjacent.

2. A chain composed of links, each link having double parallel portions at the end-opposite the widened portion, the links having lateral projecting feet, and arrestingrings with lateral projections, as and for the purpose specified.

j 3. A chain 'composed of links detachably connected together, the links having lateral 30 projections or feet near one end, and a lateral ,projection near the opposite end, and arresting-rings having lateral projections secured to the said lateral projections of the links, as set forth.

4. A link formed with widened portion at one end; and double parallel portions at the other end, an aiiesting-ring engaging said parallel portions and with laterally-projecting feet near the widened end for attachment to a bucket, as and for the purpose specified.

In testimony whereof I ailix my signature.

JEAN DUPUIS.

In presence of- PAUL P. ALRIC, ALFRED V. RIVAFONCUER. 

